KR20130117898A

KR20130117898A - Heat exchange pipe and heat exchanger having the same

Info

Publication number: KR20130117898A
Application number: KR1020120026369A
Authority: KR
Inventors: 서인원
Original assignee: 서인원
Priority date: 2012-03-15
Filing date: 2012-03-15
Publication date: 2013-10-29

Abstract

The present invention relates to a heat exchange pipe and a heat exchanger, and more particularly to a heat exchange pipe consisting of three tubes and a heat exchanger having the same. The heat exchanger has a fluid flowing therein, and a straight first tube, spirally wrapped around the outside of the first tube, a second tube that exchanges heat with the first tube, and a third tube that receives the second tube and heat exchanges with an external medium. It includes a heat exchange pipe and a housing for receiving the heat exchange pipe. With such a configuration, according to an embodiment of the present invention, a heat exchange pipe and a heat exchanger having the same can be used for effective heat exchange in a small volume and a short length. In addition, it is possible to maximize the heat transfer efficiency by minimizing the flow resistance of the medium, improving the heat exchange performance between the medium.

Description

Heat exchange pipe and heat exchanger having the same

The present invention relates to a heat exchange pipe and a heat exchanger.

In general, a heat exchanger is a device that transfers thermal energy of a high temperature fluid to a relatively low temperature fluid so that the high temperature fluid temperature is lowered and the low temperature fluid temperature is increased. For example, a heat exchanger is a device for transferring heat from a high temperature fluid to a low temperature fluid through a heat transfer wall, and is used in a heater, a cooler, an evaporator, a condenser, and the like. Heat exchangers are available in a variety of ways, including multi-tube, double pipe, fin tube type, coil tube type, spiral type, and plate type. It is known.

In addition, the heat exchanger is a heat transfer medium used to heat the fluid to be heated is called a fruit, on the contrary, it is called a refrigerant used to take heat away. Refrigerants or fruits are often used gas or liquid.

On the other hand, a general heat exchanger includes an inner tube through which a first fluid flows, an outer tube with which the second fluid flows around the inner tube, and heat exchange between the fluids is performed by using the side wall of the inner tube as a heat transfer wall.

As such, the heat exchanger has low heat exchange efficiency because the heat transfer area between the outer wall of the inner tube and the second fluid is in contact is small. In order to improve the heat exchange efficiency, the heat exchanger must be increased in size or lengthened.

However, increasing the length of the heat exchanger or increasing the size of the heat exchanger has a problem that it is difficult to implement due to the problem of volume.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat exchange pipe and a heat exchanger having the same, which are effective heat exchanger in a small volume and a short length.

Another object of the present invention is to provide a heat exchanger pipe and a heat exchanger having the same to minimize the flow resistance of the medium, and to maximize the heat transfer efficiency by improving the heat exchange performance between the medium.

In the heat exchange pipe according to the embodiments of the present invention described above, a fluid flows inside and a straight first tube, a spiral tube surrounding the outside of the first tube, and a second tube and heat exchanger with the first tube. It includes a third tube for receiving and heat exchange with the external medium.

Here, the second tube is characterized in that the fluid flows hotter than the fluid inside the first tube. The outer medium is hotter than the inner fluid of the second tube.

According to an embodiment, the first, second and third pipes may be made of stainless steel having low thermal conductivity.

The heat exchanger according to another embodiment of the present invention is a fluid flowing and linearly wrapped around the first tube, the outside of the first tube, the second tube and the second tube to heat exchange with the first tube and the external medium And a heat exchange pipe including a third pipe to heat exchange with and a housing accommodating the heat exchange pipe.

Here, the housing is characterized in that the cube or cylindrical.

According to an embodiment, the plurality of heat exchange pipes may be connected in series or in parallel.

According to an embodiment, the heat exchange pipes are arranged at regular intervals in a straight line shape inside the housing.

According to the embodiment, the heat exchange pipe form is twisted as a vortex, characterized in that the circumference of one side is wider than the circumference of the other side.

According to an embodiment, when the heat exchanger pipe and the inlet and the outlet pipe are connected, only the end is welded.

With such a configuration, according to an embodiment of the present invention, it can be referred to as a heat exchange pipe and a heat exchanger having the same effective heat exchange in a small volume and short length.

In addition, it is possible to maximize the heat transfer efficiency by minimizing the flow resistance of the medium, improving the heat exchange performance between the medium.

As described above, according to the embodiments of the present invention, there is an advantage that can be installed in a narrow space heat exchanger is effective heat exchange.

In addition, there is an advantage that can minimize the welding required in the installation of the heat exchanger.

1 is a cross-sectional view showing a cross section of a heat exchange pipe according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a first tube and a second tube of the heat exchange pipe of FIG.
3 shows a spiral twisted form of the heat exchange pipe of FIG.
4 illustrates a heat exchanger according to another embodiment of the present invention.
FIG. 5 illustrates a form in which the heat exchange pipe of FIG. 1 is twisted in a vortex form.
FIG. 6 illustrates a form in which the heat exchange pipes of FIG. 5 are connected in series.
7 is a cross-sectional view illustrating a heat exchanger to which the heat exchange pipe of FIG. 6 is applied.

1 and 2 will be described in detail with respect to the heat exchange pipe according to an embodiment of the present invention.

1 is a cross-sectional view showing a cross section of a heat exchange pipe according to an embodiment of the present invention, Figure 2 is a perspective view showing a first tube and a second tube of the heat exchange pipe of Figure 1;

Referring to FIG. 1, the heat exchange pipe 100 has a fluid flowing therein, and linearly wraps the first tube 10 and the outside of the first tube 10 in a spiral manner, and heat exchanges with the first tube 10. It comprises a second tube 20 and the third tube (30) for accommodating the second tube 20 and heat exchange with an external medium (not shown).

For example, the first tube 10, the second tube 20 and the third tube 30 can be made of a stainless steel material with good thermal conductivity, the thermal conductivity of the stainless steel is about 0.039 cal / cmsec? It is preferable to use.

In addition, the fluid flowing inside the second tube 20 is a fluid of a higher temperature than the fluid inside the first tube 10, the external medium (not shown) in direct contact with the third tube (30) May be a medium having a higher temperature than the internal fluid of the second pipe 20.

That is, heat exchange occurs between the first pipe 10 and the second pipe 20 due to heat conduction between each other, and the second pipe 20 and the external medium conduct heat to each other through the third pipe 30. Heat exchange occurs.

Here, the structures of the first tube and the second tube will be described in detail.

Referring to FIG. 2, the heat exchange pipe 100 has a shape in which the second pipe 20 is spirally twisted around the first pipe 10. That is, since the second tube 20 is twisted in a spiral shape to surround the first tube 10, heat transfer can be efficiently performed by maximizing the areas in contact with each other.

3 shows a spiral twisted form of the heat exchange pipe of FIG.

Referring to Figure 3, (a) is a cross-sectional view of the spirally twisted shape of the heat exchange pipe 100, (b) is a perspective view of the spirally twisted shape of the heat exchange pipe 100.

When the heat exchange pipe 100 is spirally manufactured as shown in FIG. 3, an area between the external medium (not shown) and the heat exchange pipe 100 is widened to increase the area where heat is conducted, thereby improving heat transfer efficiency. have.

In other words, in order to increase the area in which the external medium (not shown) is in contact with the heat exchange pipe (100), the heat exchange pipe (100) is spirally fabricated to form a space between the external medium (not shown) and the heat exchange pipe (100). It may be advantageous in transferring heat.

4 illustrates a heat exchanger according to another embodiment of the present invention.

Referring to Figure 4, (a) is a cross-sectional view showing a cross section of the heat exchanger to which the heat exchange pipe 100 is applied, (b) is a front view showing the front of the heat exchanger to which the heat exchange pipe 100 is applied.

The heat exchanger includes a heat exchange pipe 100 and a plate-shaped housing 110 for receiving the heat exchange pipe 100. Here, the heat exchange pipe 100 has a plurality of heat exchange pipes 100 in a straight line form a constant interval, one surface and the other surface of the heat exchange pipe 100 can be fixedly supported by the plate-shaped housing (110). have. In addition, the plate-shaped housing 110 is provided on one side and the other side of the heat exchange pipe 100 in the form of a plate, so that the heat exchange pipe 100 can be fixed at a constant interval.

That is, as an external medium (not shown) passes between the heat exchange pipes 100 in the heat exchanger, heat exchange may occur due to heat conduction between the heat exchange pipe 100 and the external medium (not shown). However, the size and number of the heat exchange pipe 100 is not limited by the drawings and may be changed according to the performance and function of the heat exchanger.

FIG. 5 illustrates a form in which the heat exchange pipe of FIG. 1 is twisted in a vortex form.

Referring to Figure 5, (a) is a front view showing the front of the heat exchange pipe 100 twisted in a spiral form, (b) is a perspective view showing the heat exchange pipe 100 twisted in a swirl form.

3 and 4, the heat exchange efficiency of the heat exchange pipe 100 having a spiral shape may be better than that of the heat exchange pipe 100 described above with reference to FIGS. Can be.

In more detail, the heat exchange pipe 100 may be configured in a shape in which the circumference of one side of the vortex is wider than the size of the circumference of the other side. That is, it can be bent while drawing a small circle from the bottom to draw a larger circle toward the top.

Therefore, the heat exchange pipe 100 manufactured by bending may be easily manufactured since there is no weld. In addition, since the spiral shape can maintain a large contact area with an external medium (not shown) even with a small volume, the heat exchange efficiency can be improved.

Meanwhile, an inlet 210 pipe through which fluid is introduced may be provided at a lower portion thereof, and an outlet 220 pipe through which the fluid is discharged may be provided at an upper portion thereof. In addition, the inlet 210 and the outlet 220 pipe may be connected to the end of the heat exchange pipe 100 by welding, respectively.

FIG. 6 illustrates a form in which the heat exchange pipes of FIG. 5 are connected in series.

Referring to FIG. 6, (a) is a front view illustrating a form in which a plurality of heat exchange pipes 100 are connected in series, and (b) is a perspective view illustrating a form in which a plurality of heat exchange pipes 100 are connected in series. to be.

As shown in FIG. 6, when a plurality of heat exchange pipes 100 of FIG. 5 are connected and used in series, more efficient heat exchange may be achieved than when one is used. That is, when the spiral heat exchange pipes 100 are connected in series by overlapping the respective spiral heat exchangers, they can save space and improve heat exchange efficiency better than when one heat exchange pipe 100 is used. can do.

In addition, the heat exchange pipe 100 may be connected by welding when connected in series, and each heat exchange pipe 100 connected in series may include one inlet 210 and an outlet 220 pipe. However, it is not limited to connecting the heat exchange pipe 100 in series as shown in FIG. 6, and the heat exchange pipe 100 may be connected in parallel.

7 is a cross-sectional view illustrating a heat exchanger to which the heat exchange pipe of FIG. 6 is applied.

The heat exchanger is an embodiment in which the heat exchange pipe 100 of FIG. 6 is applied, and a cylindrical housing 120 is provided outside, and the heat exchanger pipe 100 may be accommodated in the cylindrical housing 120.

In more detail, the heat exchanger may include a heat exchange pipe 100 and a cylindrical housing 120, and the heat exchange pipe 100 may be provided inside the cylindrical housing 120. In addition, the inlet 210 and the outlet 220 pipe connected to the heat exchange pipe 100 are connected to the outside through the cylindrical housing 120.

On the other hand, when an external medium (not shown) flows into the inlet provided on one surface of the cylindrical housing 120, heat exchange occurs due to heat conduction while the heat exchange pipe 100 provided therein contacts the external medium (not shown). Can be. Therefore, the heat exchanged external medium (not shown) may exit to the outlet provided on the other surface of the cylindrical housing 120.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The present invention is not limited to the above-described embodiments, and various modifications and changes may be made thereto by those skilled in the art to which the present invention belongs. Therefore, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, are included in the scope of the present invention.

10: Hall 1
20: subsection 2
30: Hall 3
100: heat exchanger pipe
110: plate housing
120: cylindrical housing
210: entrance
220: Outlet

Claims

Fluid flowing inside and the straight first pipe;
A second pipe that spirally surrounds the outside of the first pipe and heat exchanges with the first pipe; And
A third tube accommodating the second tube and exchanging heat with an external medium;
Heat exchange pipe comprising a.

The method of claim 1,
The second pipe is a heat exchange pipe, characterized in that the fluid flows higher than the fluid inside the first pipe.

The method of claim 1,
And the outer medium is hotter than the inner fluid of the second tube.

The method of claim 1,
The first, second and third pipes are heat exchange pipes, characterized in that made of stainless steel.

Fluid flowing inside and the linear first tube, spirally wrapped around the outside of the first tube, the second tube to heat exchange with the first tube and the third tube to accommodate the second tube and heat exchange with the external medium A heat exchange pipe comprising; And
A housing for receiving the heat exchange pipe;
Heat exchanger comprising a.

The method of claim 5,
And the housing is hexahedral or cylindrical.

The method of claim 5,
And the plurality of heat exchange pipes are connected in series or in parallel.

The method of claim 5,
The heat exchanger pipe is heat exchanger, characterized in that arranged in a constant interval in a straight line inside the housing.

The method of claim 5,
The heat exchange pipe is twisted in the form of a spiral, the heat exchanger, characterized in that the circumference of one side is wider than the circumference of the other side.

The method according to claim 5 and 9,
Heat exchanger characterized in that the welding is only at the end when connecting the heat exchanger pipe and the inlet and outlet pipes.